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42 U.S.C. 7401 et seq.
43 FR 51393, Nov. 3, 1978, unless otherwise noted.
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(a) Identification of plan—delegation of authority. On June 17, 2025, the EPA signed a Memorandum of Agreement (MOA) that defines policies, responsibilities, and procedures pursuant to 40 CFR part 62, subpart LLL (the “Federal plan”) by which the Federal plan will be administered by the Allegheny County Health Department (ACHD).
(b) Identification of sources. The MOA and related Federal plan apply to all affected SSI units within Allegheny County, Pennsylvania that meet all the following criteria under § 62.15855:
(1) The SSI unit(s) commenced construction on or before October 14, 2010, or physical or operational changes to the SSI unit(s) commenced construction on or before September 21, 2011 primarily to comply with 40 CFR part 62, subpart LLL.
(2) The SSI unit(s) meets the definition of an SSI unit as defined in § 62.16045; and
(3) The SSI unit(s) is not exempt under § 62.15860.
(c) Effective date of delegation. The delegation became fully effective on June 8, 2026.
[91 FR 24731, May 7, 2026]